A former U.S. soldier was indicted by a grand jury in New York on Tuesday on charges of plotting an arson attack on the federal building that houses an Immigration and Customs Enforcement field office.

A federal grand jury indicted Army veteran Andrew Arrabaca on charges that he “used a flammable liquid to ignite a fire at the Jacob K. Javits Federal Building in Manhattan, threw a firework into the fire that exploded, and lit fireworks at the Federal Building.”